Question

martin shoots free throws every day. yesterday he made 70 out of 100 free throws. during the season, martin shoots about 50 three throws. how many should he expect to make?

Explanation:

Step1: Calculate free - throw percentage

The free - throw percentage is calculated as the number of made free - throws divided by the number of attempted free - throws. So the percentage $p=\frac{70}{100}=0.7$.

Step2: Estimate three - throw makes

Assume the same shooting percentage for three - throws. The expected number of made three - throws $n$ is the shooting percentage times the number of three - throw attempts. So $n = 0.7\times50$.
$n=35$

Answer:

35